Petunia plant named ‘Sunsurf Akatora’

ABSTRACT

A new and distinct cultivar of  Petunia  plant named ‘Sunsurf Akatora’, characterized by its upright to outwardly spreading and trailing plant habit; vigorous growth habit; freely branching habit; early and freely flowering habit; long flowering period; large dark red-colored flowers; and good garden performance.

Botanical designation: Petunia×hybrida.

Cultivar denomination: ‘SUNSURF AKATORA’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Petunia plant, botanically known as Petunia×hybrida and hereinafter referred to by the name ‘Sunsurf Akatora’.

The new Petunia plant is a product of a planned breeding program conducted by the Inventors in Higashiomi, Shiga, Japan. The objective of the breeding program is to create new freely branching Petunia plants with trailing habit and dark red-colored flowers.

The new Petunia plant originated from a cross-pollination made by the Inventors in April, 2006 in Higashiomi, Shiga, Japan of a proprietary selection of Petunia×hybrida identified as code name Pf 411-5, not patented, as the female, or seed, parent with a proprietary selection of Petunia×hybrida identified as code name B268-1, not patented, as the male, or pollen, parent. The new Petunia plant was discovered and selected by the Inventors as a single flowering plant within the progeny of the stated cross-pollination in a controlled environment in Higashiomi, Shiga, Japan in September, 2007.

Asexual reproduction of the new Petunia plant by terminal cuttings in a controlled environment in Higashiomi, Shiga, Japan since October, 2007 has shown that the unique features of this new Petunia plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Petunia have not been observed under all possible environmental conditions and cultural conditions. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Sunsurf Akatora’. These characteristics in combination distinguish ‘Sunsurf Akatora’ as a new and distinct Petunia plant:

-   -   1. Upright to outwardly spreading and trailing plant habit.     -   2. Vigorous growth habit.     -   3. Freely branching habit.     -   4. Early and freely flowering habit.     -   5. Long flowering period.     -   6. Large dark red-colored flowers.     -   7. Good garden performance.

Plants of the new Petunia can be compared to plants of the female parent selection. Plants of the new Petunia differ primarily from plants of the female parent selection in the following characteristics:

-   -   1. Plants of the new Petunia are broader than plants of the         female parent selection.     -   2. Plants of the new Petunia have larger leaves than plants of         the female parent selection.

Plants of the new Petunia can be compared to plants of the male parent selection. Plants of the new Petunia differ primarily from plants of the male parent selection in the following characteristics:

-   -   1. Plants of the new Petunia are more freely branching than         plants of the male parent selection.     -   2. Plants of the new Petunia have smaller flowers than plants of         the male parent selection.

Plants of the new Petunia can also be compared to plants of the Petunia ‘Sunremi’, disclosed in U.S. Plant Pat. No. 16,803. In side-by-side comparisons conducted in Higashiomi, Shiga, Japan, plants of the new Petunia and ‘Sunremi’ differed primarily in the following characteristics:

-   -   1. Plants of the new Petunia were broader than plants of         ‘Sunremi’.     -   2. Leaves of plants of the new Petunia were elliptic in shape         whereas leaves of plants of ‘Sunremi’ were ovate in shape; in         addition, leaves of plants of the new Petunia were smaller than         leaves of plants of ‘Sunremi’.     -   3. Plants of the new Petunia had larger flowers than plants of         ‘Sunremi’.     -   4. Plants of the new Petunia and ‘Sunremi’ differed in flower         throat color as plants of ‘Sunremi’ had greyed yellow-colored         flower throats.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Petunia plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Petunia plant.

The photograph at the top of the sheet comprises a side perspective view of a typical flowering plant of ‘Sunsurf Akatora’ grown in a container.

The photograph at the bottom of the sheet is a close-up view of a typical flowering plant of ‘Sunsurf Akatora’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown during the late spring and early summer in 15-cm containers in an outdoor nursery in Higashiomi, Shiga, Japan and under cultural practices typical of commercial Petunia production. During the production of the plants, day temperatures averaged 23° C. and night temperatures averaged 13° C. Plants were four months old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Petunia×hybrida ‘Sunsurf Akatora’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of             Petunia×hybrida identified as code name Pf 411-5, not             patented.         -   Male, or pollen, parent.—Proprietary selection of             Petunia×hybrida identified as code name B268-1, not             patented. -   Propagation:     -   -   Type.—By terminal cuttings.         -   Time to initiate roots.—About one week at temperatures of             15° C. to 20° C.         -   Time to produce a rooted young plant.—About three weeks at             temperatures of 15° C. to 20° C.         -   Root description.—Fibrous; white in color.         -   Rooting habit.—Freely branching. -   Plant description:     -   -   Plant and growth habit.—Upright to outwardly spreading and             trailing plant habit; freely branching habit with numerous             lateral branches developing per plant; pinching enhances             lateral branch development; vigorous growth habit.         -   Plant height.—About 17.3 cm.         -   Plant diameter.—About 49 cm. -   Lateral branch description:     -   -   Length.—About 20.4 cm.         -   Diameter.—About 2.2 mm.         -   Internode length.—About 1.9 cm.         -   Strength.—Strong, flexible.         -   Aspect.—Upright to outwardly.         -   Texture.—Pubescent.         -   Color.—Close to 143C. -   Foliage description:     -   -   Arrangement.—Alternate, simple.         -   Length.—About 4.4 cm.         -   Width.—About 1.8 cm.         -   Shape.—Elliptic.         -   Apex.—Obtuse.         -   Base.—Obtuse.         -   Margin.—Entire.         -   Texture, upper and lower surfaces.—Pubescent.         -   Venation pattern.—Pinnate; reticulate.         -   Color.—Developing leaves, upper surface: Close to 138A.             Developing leaves, lower surface: Close to 146B. Fully             expanded leaves, upper surface: Close to 137B; venation,             close to 144C. Fully expanded leaves, lower surface: Close             to 146B; venation, close to 145B.         -   Petioles.—Length: About 4.7 mm. Diameter: About 1 mm.             Texture, upper and lower surfaces: Pubescent. Color, upper             and lower surfaces: Close to 144C. -   Flower description:     -   -   Flower arrangement and habit.—Single salverform flowers             arising from upper leaf axils; freely flowering habit with             usually about 49 flowers developing per plant; flowers face             upright to outwardly.         -   Fragrance.—None detected.         -   Natural flowering season.—Early flowering habit, plants of             the new Petunia initiate and develop flowers about three to             four weeks after planting; long flowering period; flowering             commences naturally during the spring and plants flower             continuously throughout the summer until late autumn in             Japan.         -   Flower longevity.—Individual flowers last about seven to ten             days on the plant; flowers not persistent.         -   Flower diameter.—Large, about 6 cm.         -   Flower length (depth).—About 5.2 cm.         -   Throat diameter.—About 1.5 cm.         -   Tube diameter, base.—About 3.8 mm.         -   Tube length.—About 3.1 cm.         -   Flower bud.—Shape: Cylindrical. Length: About 4.2 cm.             Diameter: About 7.4 mm. Color: Close to 184B.         -   Corolla.—Arrangement: Five petals fused at the base and             opening into a flared trumpet. Petal length from throat:             About 2.7 cm. Petal width: About 2.9 cm. Petal shape:             Spatulate. Petal apex: Cuspidate. Petal margin: Entire;             slightly undulate. Petal texture, upper and lower surfaces:             Smooth, glabrous. Throat texture: Smooth, glabrous. Tube             texture: Pubescent. Color: Petal, when opening, upper             surface: Close to 45B. Petal, when opening, lower surface:             Close to 51A. Petal, fully opened, upper surface: Close to             45B; venation, close to 45B. Petal, fully opened, lower             surface: Close to 186B; venation, close to 186B. Throat:             Close to 182B. Tube: Close to 177C.         -   Calyx.—Arrangement: One star-shaped calyx tube with five             sepals fused at the base per flower. Sepal length: About             1.8 cm. Sepal width: About 2.1 mm. Sepal shape: Lanceolate.             Sepal apex: Obtuse. Sepal margin: Entire. Sepal texture,             upper and lower surfaces: Pubescent. Color, immature and             mature, upper surface: Close to 143A. Color, immature and             mature, lower surface: Close to 144A.         -   Peduncles.—Length: About 2 cm. Diameter: About 1.5 mm.             Strength: Strong. Texture: Pubescent. Color: Close to 144B.         -   Reproductive organs.—Stamens: Quantity per flower: Five.             Stamen length: About 1.8 cm to 2.3 cm. Anther shape:             Ellipsoidal. Anther size: About 2.2 mm by 3 mm. Anther             color: Close to 10D. Pollen amount: Moderate. Pollen color:             Close to 8D. Pistils: Quantity per flower: One. Pistil             length: About 2.1 cm. Style color: Close to 145C. Stigma             shape: Transversely ellipsoidal. Stigma color: Close to             143B. Ovary color: Close to N144C. Seeds and fruits: Seed             and fruit development have not been observed on plants of             the new Petunia. -   Garden performance: Plants of the new Petunia have been observed to     have good garden performance and to tolerate rain, wind and     temperatures ranging from about 5° C. to about 35° C. -   Pathogen & pest resistance: Plants of the new Petunia have not been     observed to be resistant to pathogens and pests common to Petunia     plants. 

It is claimed:
 1. A new and distinct Petunia plant named ‘Sunsurf Akatora’ as illustrated and described. 